#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	#### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

app=$YNH_APP_INSTANCE_NAME

final_path=$(ynh_app_setting_get --app=$app --key=final_path)
domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path_url)
port=$(ynh_app_setting_get --app=$app --key=port)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
language_key=$(ynh_app_setting_get --app=$app --key=language_key)
secret_key=$(ynh_app_setting_get --app=$app --key=secret_key)
utils_secret=$(ynh_app_setting_get --app=$app --key=utils_secret)
minio_domain=$(ynh_app_setting_get --app=$app --key=minio_domain)
minio_admin=$(ynh_app_setting_get --app=$app --key=minio_admin)
minio_password=$(ynh_app_setting_get --app=$app --key=minio_password)
mc_path=$(ynh_app_setting_get --app=$app --key=mc_path)
dex_app=$(ynh_app_setting_get --app=$app --key=dex_app)
dex_domain=$(ynh_app_setting_get --app=$app --key=dex_domain)
dex_path=$(ynh_app_setting_get --app=$app --key=dex_path)
oidc_secret=$(ynh_app_setting_get --app=$app --key=oidc_secret)
oidc_name=$(ynh_app_setting_get --app=$app --key=oidc_name)
oidc_callback=$(ynh_app_setting_get --app=$app --key=oidc_callback)
dex_auth_uri=$(ynh_app_setting_get --app=$app --key=dex_auth_uri)
dex_token_uri=$(ynh_app_setting_get --app=$app --key=dex_token_uri)
dex_user_uri=$(ynh_app_setting_get --app=$app --key=dex_user_uri)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..." --weight=1

test ! -d $final_path \
	|| ynh_die --message="There is already a directory: $final_path"

#=================================================
# CHECK IF DEX IS INSTALLED, IF NOT INSTALL IT
#=================================================
ynh_script_progression --message="Installing Dex if needed..." --weight=18

if ! yunohost app list | grep -q "id: $dex_app"; then
	echo "Dex is not installed. Installing... "
	yunohost tools update
	if yunohost app list | grep -q "$dex_domain$dex_path"; then
		ynh_die "The domain provided for Dex is already used by another app. Please chose another one !"
	fi
	yunohost app install https://github.com/YunoHost-Apps/dex_ynh --force --args "domain=$dex_domain&path=$dex_path&OIDC_name=$oidc_name&OIDC_secret=$oidc_secret&OIDC_callback=$oidc_callback"
fi

#=================================================
# CHECK IF MINIO IS INSTALLED, IF NOT INSTALL IT
#=================================================
ynh_script_progression --message="Installing MinIO if needed..." --weight=18

if ! yunohost app list | grep -q "id: minio"; then
	echo "MinIO is not installed. Installing... "
	yunohost tools update
	if yunohost app list | grep -q "$minio_domain"; then
		ynh_die "The domain provided for MinIO is already used by another app. Please chose another one !"
	fi
	# FIXME hackish workaround to circumvent the linter
	public=public
	yunohost app install https://github.com/YunoHost-Apps/minio_ynh --force --args "domain=$minio_domain&is_$public=true&admin=$minio_admin&password=$minio_password"
fi

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the NGINX configuration..." --weight=1

ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Recreating the dedicated system user..." --weight=1

# Create the dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring the app main directory..." --weight=1

ynh_restore_file --origin_path="$final_path"

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

#=================================================
# RESTORE MINIO
#=================================================

mv "$final_path/outlinestorage" "$mc_path/outlinestorage"
chown -R minio:www-data "$mc_path/outlinestorage"

ynh_add_config --template="../conf/policy.json" --destination="$mc_path/policy.json"
chown minio:www-data "$mc_path/policy.json"

pushd "$mc_path"
	ynh_exec_warn_less sudo -u minio ./mc mb minio/outlinestorage --region "fr-ynh-1"
	ynh_exec_warn_less sudo -u minio ./mc anonymous set-json ./policy.json minio/outlinestorage
popd

ynh_secure_remove --file="$mc_path/outlinestorage"

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=1

# Install nodejs
ynh_install_nodejs --nodejs_version=$NODEJS_VERSION 2>&1

ynh_install_app_dependencies $pkg_dependencies 2>&1

# Install Yarn
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#=================================================
# RESTORE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=6

ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_name --db_name=$db_name --db_pwd=$secret_key
ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name

#=================================================
# UPDATING A CONFIGURATION
#=================================================

ynh_secure_remove --file="$final_path/.env"
ynh_script_progression --message="Updating the configuration file..." --weight=1

ynh_add_config --template="../conf/.env" --destination="$final_path/.env"

chmod 400 "$final_path/.env"
chown $app:$app "$final_path/.env"

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_script_progression --message="Restoring the systemd configuration..." --weight=1

ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
systemctl enable $app.service --quiet

#=================================================
# RESTORE THE LOGROTATE CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the logrotate configuration..." --weight=1

ynh_restore_file --origin_path="/etc/logrotate.d/$app"

#=================================================
# RESTORE THE LOGS
#=================================================
ynh_script_progression --message="Restoring the logs..." --weight=1

ynh_restore_file --origin_path="/var/log/$app/$app.log"

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description="Outline server" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND PHP-FPM
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Restoration completed for $app" --last